#283379#283379

#283379 is a dark, moderate blue. Relative luminance 0.042; OKLCH L 35.5% C 0.119 H 272.1°. Best body text is #FFFFFF at 11.41:1 contrast (WCAG AA passes).

Color values

HEX	#283379
RGB	rgb(40, 51, 121)
HSL	hsl(232, 50%, 32%)
HSV	hsv(232, 67%, 47%)
CMYK	cmyk(66.9%, 57.9%, 0%, 52.5%)
CIE-LAB	lab(24.32, 19.71, -41.47)
CIE-LCH	lch(24.32, 45.92, 295.43°)
OKLab	oklab(35.52% 0.0045 -0.1192)
OKLCH	oklch(35.52% 0.119 272.1)
XYZ	xyz(5.5089, 4.1988, 18.6056)
Luminance	0.0420 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283379 #796E28

analogous

#285C79 #283379 #462879

triadic

#283379 #792833 #337928

tetradic

#283379 #79285C #796E28 #287946

square

#283379 #79285C #796E28 #287946

split-complementary

#283379 #794628 #5C7928

monochromatic

#0A0C1D #19204B #283379 #3746A7 #5564C7

Accessibility & contrast

On white

11.41

#283379 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#283379 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283379

11.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283379	#FFFFFF	#000000	##FFFFFF
##283379	1.00	11.41	1.84	11.41
#FFFFFF	11.41	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E7B

Deuteranopia (green-blind)

#003678

Tritanopia (blue-blind)

#004450

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #283379;
/* rgb */ color: rgb(40, 51, 121);
/* oklch */ color: oklch(35.5% 0.119 272.1);

Tailwind

colors: {
  custom: {
    50: '#6c6aa0',
    500: '#283379',
    950: '#000000',
  },
}

SCSS

$custom: #283379;
$custom-light: #6c6aa0;
$custom-dark: #000000;

JSON

{
  "hex": "#283379",
  "rgb": {
    "r": 40,
    "g": 51,
    "b": 121
  },
  "hsl": {
    "h": 231.852,
    "s": 50.311,
    "l": 31.569
  },
  "oklch": {
    "l": 0.35518,
    "c": 0.11927,
    "h": 272.1
  },
  "luminance": 0.04199
}

Semantic roles & 50–950 ramp

primary

#283379

secondary

#AB9F52

accent

#C74EDA

background

#F6F6F9

surface

#ECEBF2

border

#C7C6CC

text

#07060F

muted

#7A7A7E

Preview Lab

Preview with #283379

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →